There are side effects from vaccine : but fist the most serious ones are really rare 1/100.000 around, and secondly there are less serious side effects (happen more often) but no big deals : small fever for 2/3 days, some arm pain, nausea etc.
But the death toll / most serious cases from vaccine side effects for a whole country is around as high as one day of COVID death toll so I take the risks and as a country I invite people doing the same